${list:name} Takes the name of a named list (with optional +) and returns the expansion. Handles nested named lists (but the output will be confused if variant list separator specs are present). Looks for any type of list, in an undefined order, returning the first one found. Variants list_a, list_d, list_h and list_l restrict the lookup to address, domain, host or localpart lists respectively.

--- Comment #7 from Phil Pennock <pdp [at] exim> 2012-06-12 02:29:26 --- I was already concerned I might be painting the bikeshed. I mostly don't want the name to be cryptic or subject to misinterpretation if someone is thinking of something else and spots the expansion operator with this name. Your other proposals are fine.

(I'm not seeing the problem with underscores in the name, we have some like that already, such as "from_utf8", it's clear, explicit and makes it easier for non-native speakers of English to find the word breaks; but if you're opposed, since you're the one doing the work, you get to avoid the underscores.)